pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-86988-4142_the_Cashmere_Shawl.ps) >>/Users/jc/w/tmp/Tune-86988-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr/MM4/4142_the_Cashmere_Shawl.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-86988-4142_the_Cashmere_Shawl.abc 315 ABC music file with the extracted tune(s)
Tune-86988-4142_the_Cashmere_Shawl.ps 34278 PostScript
Tune-86988-4142_the_Cashmere_Shawl.txt 315 Plain-text file with the extracted tune(s)
Tune-86988-get.log 4630 Log file, useful mostly for debugging
These files should be available for 24 hours.